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Journal articles on the topic 'Loosely coupled schemes'

Author: Grafiati

Published: 4 June 2021

Last updated: 4 February 2022

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1

Nock, H. J., and M. Ostendorf. "Parameter reduction schemes for loosely coupled HMMs." Computer Speech & Language 17, no. 2-3 (2003): 233–62. http://dx.doi.org/10.1016/s0885-2308(03)00009-3.

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2

Gigante, Giacomo, and Christian Vergara. "On the Choice of Interface Parameters in Robin–Robin Loosely Coupled Schemes for Fluid–Structure Interaction." Fluids 6, no. 6 (2021): 213. http://dx.doi.org/10.3390/fluids6060213.

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We consider two loosely coupled schemes for the solution of the fluid–structure interaction problem in the presence of large added mass effect. In particular, we introduce the Robin–Robin and Robin–Neumann explicit schemes where suitable interface conditions of Robin type are used. For the estimate of interface Robin parameters which guarantee stability of the numerical solution, we propose a new strategy based on the optimization of the reduction factor of the corresponding strongly coupled (implicit) scheme, by means of the optimized Schwarz method. To check the suitability of our proposals,

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Zhang, Jiachen, Weisong Wen, Feng Huang, Xiaodong Chen, and Li-Ta Hsu. "Coarse-to-Fine Loosely-Coupled LiDAR-Inertial Odometry for Urban Positioning and Mapping." Remote Sensing 13, no. 12 (2021): 2371. http://dx.doi.org/10.3390/rs13122371.

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Accurate positioning and mapping are significant for autonomous systems with navigation requirements. In this paper, a coarse-to-fine loosely-coupled (LC) LiDAR-inertial odometry (LC-LIO) that could explore the complementariness of LiDAR and inertial measurement unit (IMU) was proposed for the real-time and accurate pose estimation of a ground vehicle in urban environments. Different from the existing tightly-coupled (TC) LiDAR-inertial fusion schemes which directly use all the considered ranges and inertial measurements to optimize the vehicle pose, the method proposed in this paper performs

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Chen, Dong Ya. "Security Integration of WAPI Based WLAN and 3G." Applied Mechanics and Materials 241-244 (December 2012): 2510–13. http://dx.doi.org/10.4028/www.scientific.net/amm.241-244.2510.

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To achieve the security inte-gration of 3G and WAPI based WLAN, a USIM based certificate distribution protocol is proposed. Two security integration schemes, i.e, loosely coupled and tightly coupled, are presented, which unify user management of 3G security architecture and WAPI, and realize WAPI based network access for 3G subscribers and identity privacy protection. The entity authentication and anonymity of the certificate distribution protocol is analyzed in CK model, and the results show that the protocol is provably secure.

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Lin, F. B., and F. Sotiropoulos. "Strongly-Coupled Multigrid Method for 3-D Incompressible Flows Using Near-Wall Turbulence Closures." Journal of Fluids Engineering 119, no. 2 (1997): 314–24. http://dx.doi.org/10.1115/1.2819136.

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An efficient artificial compressibility algorithm is developed for solving the three-dimensional Reynolds-averaged Navier-Stokes equations in conjunction with the low-Reynolds number k-ω turbulence model (Wilcox, 1994). Two second-order accurate central-differencing schemes, with scalar and matrix-valued artificial dissipation, respectively, and a third-order accurate flux-difference splitting upwind scheme are implemented for discretizing the convective terms. The discrete equations are integrated in time using a Runge-Kutta algorithm enhanced with local time stepping, implicit residual smoot

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Bremer, Jörg, and Michael Sonnenschein. "Model-based integration of constrained search spaces into distributed planning of active power provision." Computer Science and Information Systems 10, no. 4 (2013): 1823–54. http://dx.doi.org/10.2298/csis130304073b.

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The current upheaval in the electricity sector demands distributed generation schemes that take into account individually configured energy units and new grid structures. At the same time, this change is heading for a paradigm shift in controlling these energy resources within the grid. Pro-active scheduling of active power within a (from a controlling perspective) loosely coupled group of distributed energy resources demands for distributed planning and optimization methods that take into account the individual feasible region in local search spaces modeled by surrogate models. We propose a m

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Gan, XingLi, Wei Li, Ling Yang, and Heng Zhang. "State-Space Measurement Update for GNSS/INS Integrated Navigation." Mathematical Problems in Engineering 2020 (September 27, 2020): 1–14. http://dx.doi.org/10.1155/2020/3675824.

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This paper theoretically derives the equivalence conditions for the loosely and tightly coupled GNSS/INS integration algorithms. Firstly, the equivalence is proved when using single epoch GNSS measurements, which means the GNSS processor provides standalone solution. Then, the equivalence proof is further extended for the filtering solutions, which are usually applied for differential GNSS and precise point positioning. Based on these, different state and measurement models for GNSS/INS integration navigation are summarized, and natural differences among these models are discussed. This indica

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Hwang, Yunn Lin, Shen Jenn Hwang, Zi Gui Huang, Ming Tzong Lin, Yen Chien Mao, and Pei Yu Wang. "Computational Analysis of Multibody Dynamic Systems Using Nonlinear Recursive Formulation." Key Engineering Materials 419-420 (October 2009): 289–92. http://dx.doi.org/10.4028/www.scientific.net/kem.419-420.289.

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. In this paper the computer implementation of the nonlinear recursive formulation in multibody dynamics systems is described. The organization of the computer algorithm which is used to automatically construct and numerically solve the system of loosely coupled dynamic equations expressed in terms of the absolute and joint coordinates is discussed. The inertia projection schemes used in most existing recursive formulations for the dynamic analysis of deformable mechanisms lead to dense coefficient matrices in the equations of motion. Consequently, there are strong dynamic couplings between th

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Gross, U., and J. C. Mulder. "Performance and Capabilities of a New, Integrated SEM Image Store." Proceedings, annual meeting, Electron Microscopy Society of America 48, no. 1 (1990): 436–37. http://dx.doi.org/10.1017/s0424820100180938.

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Loosely-coupled, add-on image stores have been used in electron microscopy for some years. Only recently have they been more closely integrated into the system architecture. With the introduction of the new XL series of scanning electron microscopes Philips goes one step further by making the image store the central image information switchboard with one common user interface for all microscope functions (Fig. 1).Fig. 2 shows the functional structure of the XL image store.Each of the dual-port, dual-speed memory boards (MEM) stores two 8 bit planes of 680 lines (of which 525 are used complying

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10

Pan, J. Z., and R. V. Patel. "Reconfigurable distributed real-time processing for multi-robot control: Design, implementation and experimentation." Robotica 22, no. 6 (2004): 661–79. http://dx.doi.org/10.1017/s0263574704000360.

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Sophisticated robotic applications require systems to be reconfigurable at the system level. Aiming at this requirement, this paper presents the design and implementation of a software architecture for a reconfigurable real-time multi-processing system for multi-robot control. The system is partitioned into loosely coupled function units and the data modules manipulated by the function units. Modularized and unified structures of the sub-controllers and controller processes are designed and constructed. All the controller processes run autonomously and intra-sub-controller information exchange

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11

Moussa, M., A. Moussa, M. Elhabiby, and N. El-Sheimy. "INVESTIGATION OF DIFFERENT LOW-COST LAND VEHICLE NAVIGATION SYSTEMS BASED ON CPD SENSORS AND VEHICLE INFORMATION." ISPRS Annals of Photogrammetry, Remote Sensing and Spatial Information Sciences V-1-2020 (August 3, 2020): 189–97. http://dx.doi.org/10.5194/isprs-annals-v-1-2020-189-2020.

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Abstract. Recently, many companies and research centres have been working on research and development of navigation technologies for self-driving cars. Many navigation technologies were developed based on the fusion of various sensors. However, most of these techniques used expensive sensors and consequently increase the overall cost of such cars. Therefore, low-cost sensors are now a rich research topic in land vehicle navigation. Consumer Portable Devices (CPDs) such as smartphones and tablets are being widely used and contain many sensors (e.g. cameras, barometers, magnetometers, accelerome

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Zhu, Zhihui, Wei Gong, Lidong Wang, Issam E. Harik, and Yu Bai. "A hybrid solution for studying vibrations of coupled train–track–bridge system." Advances in Structural Engineering 20, no. 11 (2017): 1699–711. http://dx.doi.org/10.1177/1369433217691775.

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This article develops a hybrid model to analyse the dynamic interactions between a train, tracks and a bridge. The model couples the train and track subsystems to form an integrated time-dependent subsystem through a vertically interacting wheel–rail model. In turn, this time-dependent subsystem is coupled with the bridge subsystem by enforcing the compatibility of forces at the contact points between the track and the bridge. A new hybrid solution algorithm is proposed which combines the strongly coupled method and the loosely coupled method to numerically solve the equation of motion of the

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13

Agarwal, Vivek, Hemendra Arya, Biswanath Nayak, and Lalit R. Saptarshi. "Extended Kalman Filter based loosely coupled INS/GPS integration scheme using FPGA and DSP." International Journal of Intelligent Defence Support Systems 1, no. 1 (2008): 5. http://dx.doi.org/10.1504/ijidss.2008.020271.

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14

Zhou, Di, Zhiliang Lu, Tongqing Guo, and Guoping Chen. "A loosely-coupled gas-kinetic BGK scheme for conjugate heat transfer in hypersonic flows." International Journal of Heat and Mass Transfer 147 (February 2020): 119016. http://dx.doi.org/10.1016/j.ijheatmasstransfer.2019.119016.

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15

Chiang, Kai-Wei, Hsiu-Wen Chang, Yu-Hua Li, et al. "Assessment for INS/GNSS/Odometer/Barometer Integration in Loosely-Coupled and Tightly-Coupled Scheme in a GNSS-Degraded Environment." IEEE Sensors Journal 20, no. 6 (2020): 3057–69. http://dx.doi.org/10.1109/jsen.2019.2954532.

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16

(Kane) Kim, K. H. "Design of loosely coupled processes capable of time-bounded cooperative recovery: the PTC/SL scheme." Computer Communications 16, no. 5 (1993): 305–16. http://dx.doi.org/10.1016/0140-3664(93)90047-v.

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17

Bukač, M. "A loosely-coupled scheme for the interaction between a fluid, elastic structure and poroelastic material." Journal of Computational Physics 313 (May 2016): 377–99. http://dx.doi.org/10.1016/j.jcp.2016.02.051.

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18

Stokos, Konstantinos, Socrates Vrahliotis, Theodora Pappou, and Sokrates Tsangaris. "Development and validation of an incompressible Navier-Stokes solver including convective heat transfer." International Journal of Numerical Methods for Heat & Fluid Flow 25, no. 4 (2015): 861–86. http://dx.doi.org/10.1108/hff-01-2014-0023.

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Purpose – The purpose of this paper is to present a numerical method for the simulation of steady and unsteady incompressible laminar flows, including convective heat transfer. Design/methodology/approach – A node centered, finite volume discretization technique is applied on hybrid meshes. The developed solver, is based on the artificial compressibility approach. Findings – A sufficient number of representative test cases have been examined for the validation of this numerical solver. A wide range of the various dimensionless parameters were applied for different working fluids, in order to e

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19

Chen, Yajie, Zhiqiang Pan, Ming Ni, et al. "Design of Marine High Power Wireless Charging System." E3S Web of Conferences 194 (2020): 02010. http://dx.doi.org/10.1051/e3sconf/202019402010.

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With the application of new energy ships equipped with large-capacity batteries/ultracapacitors in oceans, inland rivers and lakes, the need for high-power wireless charging systems has become increasingly urgent. Based on the analysis of the characteristics of ship charging operation, this paper selected the structure of loosely coupled transformer and introduces its core technology. Then the basic principle of the wireless charging system for the ship is introduced, and the scheme of 1.2 MWwireless charging system is designed according to the specific application.2.5

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20

Kim, Jeong-Wook, In-June Hwang, Jong-Won Yu, and Tae-Dong Yeo. "Maximum Efficiency Point Tracking Scheme for Loosely Coupled Multiple-Receiver Wireless Power Charging System With Mutual Inductance Tracking." IEEE Transactions on Microwave Theory and Techniques 69, no. 1 (2021): 378–86. http://dx.doi.org/10.1109/tmtt.2020.3025069.

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21

Boilevin-Kayl, Ludovic, Miguel A. Fernández, and Jean-Frédéric Gerbeau. "A Loosely Coupled Scheme for Fictitious Domain Approximations of Fluid-Structure Interaction Problems with Immersed Thin-Walled Structures." SIAM Journal on Scientific Computing 41, no. 2 (2019): B351—B374. http://dx.doi.org/10.1137/18m1192779.

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22

Gigante, Giacomo, and Christian Vergara. "On the stability of a loosely-coupled scheme based on a Robin interface condition for fluid-structure interaction." Computers & Mathematics with Applications 96 (August 2021): 109–19. http://dx.doi.org/10.1016/j.camwa.2021.05.012.

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23

WANG, JIANGFENG, YIZHAO WU, and KEMING CHENG. "NUMERICAL SIMULATION OF MHD FLOWS WITH NON-EQUILIBRIUM CHEMICAL REACTIONS ON UNSTRUCTURED MESHES." Modern Physics Letters B 23, no. 03 (2009): 297–300. http://dx.doi.org/10.1142/s0217984909018242.

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Two dimensional hypersonic magnetohydrodynamics(MHD) flows with the chemical non-equilibrium effects are numerically simulated using upwind splitting scheme based on unstructured meshes. The governing equations are 2D MHD equations with the chemical components, where 5 species and 17 chemical reactions are considered. The AUSM scheme is implemented in the spatial discretization for the MHD equations, and an explicit 5-stage Runge-Kutta scheme is used for time integration. A loosely coupled approach is used to communicate between the MHD equations and the chemical reaction model. The computatio

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24

Haque, Arefin, Amgad Salama, Kei Lo, and Peng Wu. "Surface and Groundwater Interactions: A Review of Coupling Strategies in Detailed Domain Models." Hydrology 8, no. 1 (2021): 35. http://dx.doi.org/10.3390/hydrology8010035.

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In groundwater numerical simulations, the interactions between surface and groundwater have received great attention due to difficulties related to their validation and calibration due to the dynamic exchange occurring at the soil–water interface. The interaction is complex at small scales. However, at larger scales, the interaction is even more complicated, and has never been fully addressed. A clear understanding of the coupling strategies between the surface and groundwater is essential in order to develop numerical models for successful simulations. In the present review, two of the most c

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Zhang, Lei, Shuyan Zou, Chizhong Wang, and Jianglong Sun. "A loosely-coupled scheme for the flow-induced flapping problem of two-dimensional flexible plate with strong added-mass effect." Ocean Engineering 217 (December 2020): 107656. http://dx.doi.org/10.1016/j.oceaneng.2020.107656.

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26

Tien, Y. C., Y. L. Chen, and K. W. Chiang. "ADAPTIVE STRATEGY-BASED TIGHTLY-COUPLED INS/GNSS INTEGRATION SYSTEM AIDED BY ODOMETER AND BAROMETER." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLII-2/W13 (June 5, 2019): 881–88. http://dx.doi.org/10.5194/isprs-archives-xlii-2-w13-881-2019.

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<p><strong>Abstract.</strong> Inertial Navigation System/Global Navigation Satellite System (INS/GNSS) integration system have been widely applied in recent years. Unfortunately, it sometimes malfunctions and the performance heavily deteriorates, especially in urban area where signals from satellites may be blocked or reflected by modern buildings. In multipath or Non Light-of-sight (NLOS) environment, incorrect signal results in poor observability of GNSS measurement model in Kalman Filter (KF). For purpose of addressing the issue, we proposed an adaptive strategy-based tigh

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27

Atia, Mohamed Maher, Tashfeen Karamat, and Aboelmagd Noureldin. "An Enhanced 3D Multi-Sensor Integrated Navigation System for Land-Vehicles." Journal of Navigation 67, no. 4 (2014): 651–71. http://dx.doi.org/10.1017/s0373463314000083.

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In urban areas, Global Positioning System (GPS) accuracy deteriorates due to signal degradation and multipath effects. To provide accurate and robust navigation in such GPS-denied environments, multi-sensor integrated navigation systems are developed. This paper introduces a 3D multi-sensor navigation system that integrates inertial sensors, odometry and GPS for land-vehicle navigation. A new error model is developed and an efficient loosely coupled closed-loop Kalman Filter (Extended KF or EKF) integration scheme is proposed. In this EKF-based integration scheme, the inertial/odometry navigat

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Luo, Guangchun, Ningduo Peng, Ke Qin, and Aiguo Chen. "A Layered Searchable Encryption Scheme with Functional Components Independent of Encryption Methods." Scientific World Journal 2014 (2014): 1–16. http://dx.doi.org/10.1155/2014/153791.

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Searchable encryption technique enables the users to securely store and search their documents over the remote semitrusted server, which is especially suitable for protecting sensitive data in the cloud. However, various settings (based on symmetric or asymmetric encryption) and functionalities (ranked keyword query, range query, phrase query, etc.) are often realized by different methods with different searchable structures that are generally not compatible with each other, which limits the scope of application and hinders the functional extensions. We prove that asymmetric searchable structu

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Link, Ryan J., and David Zimmerman. "An Approach for Model Updating of a Multiphysics MEMS Micromirror." Journal of Dynamic Systems, Measurement, and Control 129, no. 3 (2006): 357–66. http://dx.doi.org/10.1115/1.2719775.

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In this work, a general approach is formulated for updating the parameters of systems governed by multiphysics equations. The optimization technique is based on Genetic Algorithms (GAs). GAs represent a class of probabilistic optimization strategies loosely patterned after a simplified evolutionary scheme and Darwin’s “survival of the fittest” concepts. The GA is coupled to a commercially available multiphysics finite element program. In the context of this, issues of mode tracking, eigenvector comparisons, and approximate function evaluations are discussed. The approach is demonstrated on a m

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You, Young H., Deokhwan Na, and Sung N. Jung. "Data Transfer Schemes in Rotorcraft Fluid-Structure Interaction Predictions." International Journal of Aerospace Engineering 2018 (2018): 1–15. http://dx.doi.org/10.1155/2018/3426237.

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For a CFD (computation fluid dynamics)/CSD (computational structural dynamics) coupling, appropriate data exchange strategy is required for the successful operation of the coupling computation, due to fundamental differences between CFD and CSD analyses. This study aims at evaluating various data transfer schemes of a loose CFD/CSD coupling algorithm to validate the higher harmonic control aeroacoustic rotor test (HART) data in descending flight. Three different data transfer methods in relation to the time domain airloads are considered. The first (method 1) uses random data selection matched

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31

Kovalenko, A. M., and A. A. Shejnikov. "Model of the inertial and optical navigation system of the unmanned aerial vehicle." «System analysis and applied information science», no. 2 (August 18, 2020): 17–25. http://dx.doi.org/10.21122/2309-4923-2020-2-17-25.

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In article approaches to creation of the complex inertial and optical navigation system of the short-range tactical unmanned aerial vehicle are considered. Algorithms constant and periodic (in intermediate points of a route) are offered correction of the platformless onboard inertial navigation system. At integration of information on parameters of the movement of the unmanned aerial vehicle (received from the considered systems) the invariant loosely coupled scheme of data processing on the basis of the expanded filter of Kallman was used that allowed to lower significantly a systematic compo

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32

Hao, Si Peng, Cheng Biao Chu, and Quan Fang. "Design of Information Integration for Distribution System Based on IEC61968." Applied Mechanics and Materials 556-562 (May 2014): 6072–75. http://dx.doi.org/10.4028/www.scientific.net/amm.556-562.6072.

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To deal with the problem that information shares hardly and data exchanges inefficiently in distribution system, various information systems need multi-source integration. The IEC61968-based information exchange platform is an effective means to resolve the integration problem, realizing seamless data exchange and sharing of data between various subsystems. This paper mainly analyzes the Distribution Management System (DMS) information integration architecture and the message structure. Firstly, the paper proposes a design scheme of power Enterprise Service Bus (ESB) based on Service-Oriented

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33

Minkoff, Susan E., C. Mike Stone, Steve Bryant, and Malgorzata Peszynska. "Coupled geomechanics and flow simulation for time‐lapse seismic modeling." GEOPHYSICS 69, no. 1 (2004): 200–211. http://dx.doi.org/10.1190/1.1649388.

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To accurately predict production in compactible reservoirs, we must use coupled models of fluid flow and mechanical deformation. Staggered‐in‐time loose coupling of flow and deformation via a high‐level numerical interface that repeatedly calls first flow and then mechanics allows us to leverage the decades of work put into individual flow and mechanics simulators while still capturing realistic coupled physics. These two processes are often naturally modeled using different time stepping schemes and different spatial grids—flow should only model the reservoir, whereas mechanics requires a gri

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Ziebold, Ralf, Daniel Medina, Michailas Romanovas, Christoph Lass, and Stefan Gewies. "Performance Characterization of GNSS/IMU/DVL Integration under Real Maritime Jamming Conditions." Sensors 18, no. 9 (2018): 2954. http://dx.doi.org/10.3390/s18092954.

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Currently Global Navigation Satellite Systems (GNSSs) are the primary source for the determination of absolute position, navigation, and time (PNT) for merchant vessel navigation. Nevertheless, the performance of GNSSs can strongly degrade due to space weather events, jamming, and spoofing. Especially the increasing availability and adoption of low cost jammers lead to the question of how a continuous provision of PNT data can be realized in the vicinity of these devices. In general, three possible solutions for that challenge can be seen: (i) a jamming-resistant GNSS receiver; (ii) the usage

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Badr, Basem M., Art Makosinski, Nikolai Dechev, and Kerry R. Delaney. "Controlling wireless power transfer by tuning and detuning resonance of telemetric devices for rodents." Wireless Power Transfer 7, no. 1 (2020): 19–32. http://dx.doi.org/10.1017/wpt.2020.1.

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AbstractTelemetry acquisition from rodents is important in biomedical research, where rodent behavior data is used to study disease models. Telemetry devices for such data acquisition require a long-term powering method. Wireless power transfer (WPT) via magnetic resonant coupling can provide continuous power to multiple small telemetric devices. Our loosely coupled WPT (LCWPT) system consists of a stationary primary coil and multiple freely moving secondary coils. Our previous LCWPT system was designed to transfer reasonable power to secondary coils at poor orientations but transfers excessiv

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Jwo, Dah-Jing, and Tsu-Pin Weng. "An Adaptive Sensor Fusion Method with Applications in Integrated Navigation." Journal of Navigation 61, no. 4 (2008): 705–21. http://dx.doi.org/10.1017/s0373463308004827.

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The Kalman filter (KF) is a form of optimal estimator characterized by recursive evaluation, which has been widely applied to the navigation sensor fusion. Utilizing the KF requires that all the plant dynamics and noise processes are completely known, and the noise process is zero mean white noise. If the theoretical behaviour of the filter and its actual behaviour do not agree, divergence problems tend to occur. The adaptive algorithm has been one of the approaches to prevent divergence problems in the Kalman filter when precise knowledge on the system models is not available. Two popular typ

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Roach, Lettie A., Samuel M. Dean, and James A. Renwick. "Consistent biases in Antarctic sea ice concentration simulated by climate models." Cryosphere 12, no. 1 (2018): 365–83. http://dx.doi.org/10.5194/tc-12-365-2018.

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Abstract. The simulation of Antarctic sea ice in global climate models often does not agree with observations. In this study, we examine the compactness of sea ice, as well as the regional distribution of sea ice concentration, in climate models from the latest Coupled Model Intercomparison Project (CMIP5) and in satellite observations. We find substantial differences in concentration values between different sets of satellite observations, particularly at high concentrations, requiring careful treatment when comparing to models. As a fraction of total sea ice extent, models simulate too much

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Chen, Wenjun, Bin He, Junting Ma, and Chuanhai Wang. "A WebGIS-based flood control management system for small reservoirs: a case study in the lower reaches of the Yangtze River." Journal of Hydroinformatics 19, no. 2 (2016): 299–314. http://dx.doi.org/10.2166/hydro.2016.049.

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Small reservoirs are important to flood control and water resource utilization in local areas. This study proposes a WebGIS-based flood control management system to support the flood discharge of small reservoirs during intensive rainfall in the flood season. The agile software development method and a loosely coupled structure are used to combine multidisciplinary knowledge from different experts. A flood level forecasting model for reservoirs in humid regions is established based on rainfall and water level measurements. It aims to provide concise information for reservoir managers to choose

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Drisya, J., and D. Sathish Kumar. "Automated calibration of a two-dimensional overland flow model by estimating Manning's roughness coefficient using genetic algorithm." Journal of Hydroinformatics 20, no. 2 (2017): 440–56. http://dx.doi.org/10.2166/hydro.2017.110.

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Abstract Calibration is an important phase in the hydrological modelling process. In this study, an automated calibration framework is developed for estimating Manning's roughness coefficient. The calibration process is formulated as an optimization problem and solved using a genetic algorithm (GA). A heuristic search procedure using GA is developed by including runoff simulation process and evaluating the fitness function by comparing the experimental results. The model is calibrated and validated using datasets of Watershed Experimentation System. A loosely coupled architecture is followed w

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40

Trefilov, P. M., M. V. Mamchenko, and A. V. Korol’kov. "Strapdown inertial navigation systems readings correction based on navigational data of other sensors and systems with intelligent selection of the priority adjuster." E3S Web of Conferences 224 (2020): 02024. http://dx.doi.org/10.1051/e3sconf/202022402024.

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Strapdown inertial navigation systems (SINS) are one of the main components of the navigation systems of the drones and aircraft (including autonomous ones), but their readings need to be instanly corrected due to the constant accumulation of errors. This paper comprises the review of existing approaches to using one or more sensors or systems to correct the navigation data of SINS algorithms (herein after – correctors) using integrated information processing. A common disadvantage of the analysed approaches is the lack of flexibility concerning the types and the number of SINS correctors used

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Samier, Pierre, Atef Onaisi, and Sergio de Gennaro. "A Practical Iterative Scheme for Coupling Geomechanics With Reservoir Simulation." SPE Reservoir Evaluation & Engineering 11, no. 05 (2008): 892–901. http://dx.doi.org/10.2118/107077-pa.

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Summary The use of reservoir simulation coupled with geomechanics has been increasing in recent years as its utility in modeling physical phenomena such as compaction, subsidence, induced fracturing, enhancement of natural fractures and/or fault activation, and steam-assisted gravity drainage (SAGD) recovery has become apparent. Among different methods investigated by researchers, the iterative explicit method appears to be the preferred method for field-scale simulation. This method is a loose coupled approach between a reservoir simulator and a geomechanical simulator. At user-defined steps,

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Wenzel, Sandro. "A scalable and asynchronous detector simulation system based on ALFA." EPJ Web of Conferences 214 (2019): 02029. http://dx.doi.org/10.1051/epjconf/201921402029.

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In the context of the common online-offline computing infrastructure for Run3 (ALICE-O2), ALICE is reorganizing its detector simulation software to be based on FairRoot, offering a common toolkit to implement simulation based on the Virtual-Monte-Carlo (VMC) scheme. Recently, FairRoot has been augmented by ALFA, a software framework developed in collaboration between ALICE and FAIR, offering portable building blocks to construct message-based and loosely-coupled multiprocessing systems. We will report here on the implementation of a scalable and asynchronous de-tector simulation system which i

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Ning, Yipeng, Jian Wang, Houzeng Han, Xinglong Tan, and Tianjun Liu. "An Optimal Radial Basis Function Neural Network Enhanced Adaptive Robust Kalman Filter for GNSS/INS Integrated Systems in Complex Urban Areas." Sensors 18, no. 9 (2018): 3091. http://dx.doi.org/10.3390/s18093091.

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Inertial Navigation System (INS) is often combined with Global Navigation Satellite System (GNSS) to increase the positioning accuracy and continuity. In complex urban environments, GNSS/INS integrated systems suffer not only from dynamical model errors but also GNSS observation gross errors. However, it is hard to distinguish dynamical model errors from observation gross errors because the observation residuals are affected by both of them in a loosely-coupled integrated navigation system. In this research, an optimal Radial Basis Function (RBF) neural network-enhanced adaptive robust Kalman

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RANA, OMER F. "AUTOMATING PARALLEL IMPLEMENTATION OF NEURAL LEARNING ALGORITHMS." International Journal of Neural Systems 10, no. 03 (2000): 227–41. http://dx.doi.org/10.1142/s012906570000020x.

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Neural learning algorithms generally involve a number of identical processing units, which are fully or partially connected, and involve an update function, such as a ramp, a sigmoid or a Gaussian function for instance. Some variations also exist, where units can be heterogeneous, or where an alternative update technique is employed, such as a pulse stream generator. Associated with connections are numerical values that must be adjusted using a learning rule, and and dictated by parameters that are learning rule specific, such as momentum, a learning rate, a temperature, amongst others. Usuall

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Luhmann, Niklas. "Causality in the South." Soziale Systeme 23, no. 1-2 (2018): 151–73. http://dx.doi.org/10.1515/sosys-2018-0009.

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Abstract Policy development planning using legal and monetary mechanisms has proved to have little success. Due to this experience, resistance to modernisation has been explained by factors such as “tradition”, “culture”, “mentalities”. But such explanations have remained more or less tautological. It is therefore proposed to replace them with a single factor that could be called a “social construction” of causality. After decades of research on causal attribution and perception of causal relations, it can no longer be assumed that relations between causes and effects are objective facts of th

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Erdemir, Ahmet, Craig Bennetts, Sean Davis, Akhil Reddy, and Scott Sibole. "Multiscale cartilage biomechanics: technical challenges in realizing a high-throughput modelling and simulation workflow." Interface Focus 5, no. 2 (2015): 20140081. http://dx.doi.org/10.1098/rsfs.2014.0081.

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Understanding the mechanical environment of articular cartilage and chondrocytes is of the utmost importance in evaluating tissue damage which is often related to failure of the fibre architecture and mechanical injury to the cells. This knowledge also has significant implications for understanding the mechanobiological response in healthy and diseased cartilage and can drive the development of intervention strategies, ranging from the design of tissue-engineered constructs to the establishment of rehabilitation protocols. Spanning multiple spatial scales, a wide range of biomechanical factors

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B, Baruah, and Kakati M. "Pricing and financing of infrastructure projects; the challenge before the indian policymakers." Journal of Management and Science 1, no. 2 (2014): 106–32. http://dx.doi.org/10.26524/jms.2014.12.

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Ever since the economic reforms started two decades ago, India has been trying to lead the developing nations in terms of building their infrastructure. The challenge of government‟s fund constraint has been tried to put behind by allowing flow of funds from private sources with regulatory control in government own hand. However, with the global economic crisis that had knocked heavily at the doors of Indian economy too during last couple of years, it was found that developmental bottlenecks for infrastructure sector has escalated in spite of the best efforts by the government.Arranging of Deb

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Al Bitar, N., and A. I. Gavrilov. "SINS/SNS integration based on loosely coupled scheme using extended Kalman filter." Engineering Journal: Science and Innovation, no. 4 (88) (2019). http://dx.doi.org/10.18698/2308-6033-2019-4-1870.

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The article considers a problem of SINS/SNS integration based on loosely coupled integration scheme using extended Kalman filter. Full stochastic models of MEMS inertial sensor measurements were used. The performance of extended Kalman filter is evaluated using real measurements of MEMS-SINS and dual antenna SNS receiver. The results of estimating the drifts of gyroscopes and accelerometers are presented. The position accuracy of the system for different periods of SNS signal outages is also evaluated

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Zolan, Alexander J., Michael S. Scioletti, David P. Morton, and Alexandra M. Newman. "Decomposing Loosely Coupled Mixed-Integer Programs for Optimal Microgrid Design." INFORMS Journal on Computing, February 8, 2021. http://dx.doi.org/10.1287/ijoc.2020.0955.

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Microgrids are frequently employed in remote regions, in part because access to a larger electric grid is impossible, difficult, or compromises reliability and independence. Although small microgrids often employ spot generation, in which a diesel generator is attached directly to a load, microgrids that combine these individual loads and augment generators with photovoltaic cells and batteries as a distributed energy system are emerging as a safer, less costly alternative. We present a model that seeks the minimum-cost microgrid design and ideal dispatched power to support a small remote site

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Nagui, Nader, Omneya Attallah, M. S. Zaghloul, and Iman Morsi. "Improved GPS/IMU Loosely Coupled Integration Scheme Using Two Kalman Filter-based Cascaded Stages." Arabian Journal for Science and Engineering, December 21, 2020. http://dx.doi.org/10.1007/s13369-020-05144-8.

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